private static ModelDescriptionGenerator InitializeModelDescriptionGenerator(HttpConfiguration config)
 {
     var modelGenerator = new ModelDescriptionGenerator(config);
     var apis = config.Services.GetApiExplorer().ApiDescriptions;
     foreach (var api in apis)
     {
         ApiParameterDescription parameterDescription;
         Type parameterType;
         if (TryGetResourceParameter(api, config, out parameterDescription, out parameterType))
         {
             modelGenerator.GetOrCreateModelDescription(parameterType);
         }
     }
     return modelGenerator;
 }
        private static void GenerateRequestModelDescription(HelpPageApiModel apiModel, ModelDescriptionGenerator modelGenerator, HelpPageSampleGenerator sampleGenerator)
        {
            var apiDescription = apiModel.ApiDescription;
            foreach (var apiParameter in apiDescription.ParameterDescriptions)
            {
                if (apiParameter.Source == ApiParameterSource.FromBody)
                {
                    var parameterType = apiParameter.ParameterDescriptor.ParameterType;
                    apiModel.RequestModelDescription = modelGenerator.GetOrCreateModelDescription(parameterType);
                    apiModel.RequestDocumentation = apiParameter.Documentation;
                }
                else if (apiParameter.ParameterDescriptor != null &&
                         apiParameter.ParameterDescriptor.ParameterType == typeof (HttpRequestMessage))
                {
                    var parameterType = sampleGenerator.ResolveHttpRequestMessageType(apiDescription);

                    if (parameterType != null)
                    {
                        apiModel.RequestModelDescription = modelGenerator.GetOrCreateModelDescription(parameterType);
                    }
                }
            }
        }
 private static void GenerateResourceDescription(HelpPageApiModel apiModel, ModelDescriptionGenerator modelGenerator)
 {
     var response = apiModel.ApiDescription.ResponseDescription;
     var responseType = response.ResponseType ?? response.DeclaredType;
     if (responseType != null && responseType != typeof (void))
     {
         apiModel.ResourceDescription = modelGenerator.GetOrCreateModelDescription(responseType);
     }
 }
        private static void GenerateUriParameters(HelpPageApiModel apiModel, ModelDescriptionGenerator modelGenerator)
        {
            var apiDescription = apiModel.ApiDescription;
            foreach (var apiParameter in apiDescription.ParameterDescriptions)
            {
                if (apiParameter.Source == ApiParameterSource.FromUri)
                {
                    var parameterDescriptor = apiParameter.ParameterDescriptor;
                    Type parameterType = null;
                    ModelDescription typeDescription = null;
                    ComplexTypeModelDescription complexTypeDescription = null;
                    if (parameterDescriptor != null)
                    {
                        parameterType = parameterDescriptor.ParameterType;
                        typeDescription = modelGenerator.GetOrCreateModelDescription(parameterType);
                        complexTypeDescription = typeDescription as ComplexTypeModelDescription;
                    }

                    // Example:
                    // [TypeConverter(typeof(PointConverter))]
                    // public class Point
                    // {
                    //     public Point(int x, int y)
                    //     {
                    //         X = x;
                    //         Y = y;
                    //     }
                    //     public int X { get; set; }
                    //     public int Y { get; set; }
                    // }
                    // Class Point is bindable with a TypeConverter, so Point will be added to UriParameters collection.
                    // 
                    // public class Point
                    // {
                    //     public int X { get; set; }
                    //     public int Y { get; set; }
                    // }
                    // Regular complex class Point will have properties X and Y added to UriParameters collection.
                    if (complexTypeDescription != null
                        && !IsBindableWithTypeConverter(parameterType))
                    {
                        foreach (var uriParameter in complexTypeDescription.Properties)
                        {
                            apiModel.UriParameters.Add(uriParameter);
                        }
                    }
                    else if (parameterDescriptor != null)
                    {
                        var uriParameter =
                            AddParameterDescription(apiModel, apiParameter, typeDescription);

                        if (!parameterDescriptor.IsOptional)
                        {
                            uriParameter.Annotations.Add(new ParameterAnnotation {Documentation = "Required"});
                        }

                        var defaultValue = parameterDescriptor.DefaultValue;
                        if (defaultValue != null)
                        {
                            uriParameter.Annotations.Add(new ParameterAnnotation
                            {
                                Documentation = "Default value is " + Convert.ToString(defaultValue, CultureInfo.InvariantCulture)
                            });
                        }
                    }
                    else
                    {
                        Debug.Assert(parameterDescriptor == null);

                        // If parameterDescriptor is null, this is an undeclared route parameter which only occurs
                        // when source is FromUri. Ignored in request model and among resource parameters but listed
                        // as a simple string here.
                        var modelDescription = modelGenerator.GetOrCreateModelDescription(typeof (string));
                        AddParameterDescription(apiModel, apiParameter, modelDescription);
                    }
                }
            }
        }